Burner.



E. E. BILLOW.

BURNER.

AryLloATIoN FILED DB0. 24. 190e.

Ptented Ja.n 19,1909.

HIHHU .lxilllyn Elmerizzow 'PATENT oFrioE.

ELMER E. BILLQW, OF GH,1CAGQ,.ILLIN01S.

BURNER.

Specification of Letters Patent.

Patented Jim.' i9, ieoe.

Application filed December 24, 1906. Serial No. 349,205.

Io all 'whom 'ii- Imay concern:

Be it known that I, ELMER E. BILLOW, a

citizen of the 'United States, residing at Chiairy.' steam or v 5 to 12 just descri cago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in the following is a specification.

My invention relates to burners more particularly of the ty-pe adapt-ed to use a combination of both fuel gas and liquid fuel. l

It is well known that the supply of natural gas in some of the regions where it has heretofore been extensively used is becoming deficient and uncertain: and where used for steam generating and other purposes in cool weather or other adverse circumstances the burners which under normal circumstances would receive enough natural gas .for the lut imposed upon them, fail to generate su cient heat. I propose to remedy the deficiency under this and similar circumstances by providing a burner adapted to furnish an auxiliary supply of fuel inr the forni of atomized liquid hydrocarbon. I accomplish this object by the mechanism illustrated in the accompanying drawings, in which:

Figure 1 is a longitudinal central sectional View of my improved burner. 2 is a transverse section thereof taken on ine 2-2 Fig. 1. Fig. 3 is a detail showing the inlet passages for fuel gas in the mixing chamber,

Similar reference numerals refer to similar parts throughout the several views.

Referring to the drawings 5 represents an inner tube and 6 an outer tube inclosing the same, the inner tube being adapted to convey liquid fuel from a supply passage 7 and the outer tube being adapted to supply other oxygen carrier under pressure to the mouth 9 of the outer tube past the mouth 10 of the inner tube.

valve 1 1 operated by hand wheel 12 or other suitable device serves to control the How of liquid fuel throulei'tube 5; and the parts vd constitute an atomizer such. for example as the one described in detail in Patent 630,320 datedAu ust 8,

1898 for an invention in atomizers o which I am one of the two joint inventors. The

precise construction of the atomizer however, is not an essential feature of this present invention. Laterally inclosin the atomizer is a mixing chamber 13 whic in the preferred form Burners, of which' gas is supplied 1n any suitable manner.

the preferred construction gas is suppliedv is cylindrical and concentric with tubes 5 and 6. At a point behind the discharge mouth of the atomizer, tube 13 has a set of apertures 14, these apertures being preferably distributed symmetrically so as to equalize and thoroughly distribute the gas entering the tube through them. As shown in Fig. 3- these apertures in the preferred form emerge obli quely so that the gas in passing outward will also be given a motion concurrent with the flow of atomized fuel *l 'emerging from the inouthof the atomizer. Circuinferentially inclosing the tube 13 at the apertures lltherein. is a Gas chamber 15`to which a supply .of natural or artificial fuIel n to chamber 15 by means of the gas chest 16 mounted at some convenient portion thereof and communicating with chamber 15 through the valves 17 The valve bonnets 18 are mounted on chest 16 and the valves 17 are controlled by means `of hand wheels 19 or similar devices. By providing a plurality of inlet controlling valves 17 the supply of gas may be accurately re lated. Gas is su plied to chest 16 throng the pipe 20.

t will be noted that the mixing chamber 13 extends beyond the mouth of the atomizer. The purpose of this construction is to keep the natural and the atomized gases together for some distance beyond the discharge mouth of the atomizer. This increases the efficiency of mixture.

The preferred 'means of regulating ad- `mission of air to mixing chamber 13 is the twyer which consists of thetwo intersecuredv fitting shells 21, 22, shell 21 bein to chamber l5 andthe outer shell Iiein rotatable thereon. These intertting she s are provided with suitable apertures which when the rotatable shell is in one position register and when in another osition do not rester.v

The amount of air a itted may there y be regulated. An air admitter or twyer of this construction is also described in the afore said Patent 630,320.

In the preferred construction-which is here shown the inner shell of the twyer is threaded and the outer tube 6 of the atomizer is correspondingly threaded so that the atomizer may be screwed into the shell 21 and be su ported thereby. An inwardly extending ange 24 is formed at the rear end of shell 22 which is held down in position by means of the shoulder 25 which islformed on tube 6 behind said flange. This furnishes a simple construction and also a durable'and substantial one, chamber 15, the chamber 15, shell v21 and atomizer are all rigidly held together.

In the operation of the device, when one or more of the valves 17 are open gas ows through pipe 2O and chest 16v into the distributing chamber 13 through 14, the ,How being directed through the mouth of the atomizer 9 by reason of the pressure in chamber 15 and the slanting for'- mation of said apertures. The amount of air necessary to'obtain` perfect combustion is regulated by the twyer or air admitter 21, 22. When it is required to generate a greater amount of heat than is generated by the combustion of the fuel/gas alone, valve 11 is opened up a proper amount soas to admit At the same lquid fuel into the .tube 5. time, air, steam or other oxygen carrier un- A der pressure is admitted through passage 8 'with the result that the liquid fue the fuel gas in vizer even though the. supply of is atomized and issues in a spray romthe atomizer mouth 9. The spray lssuing from the mouth of the atomizer then mixes intimately with mixin chamber 13 and the combined and thoroug ly mixed gases ignite at the mouth 23 of the mixing chamber. Thus the amount of heat generated may be perfectly controlled by controllin the atomel gas be irregular and eficient.

What I claim as new and desire to secure.

by Letters Patent, is:

for as shell 21 i's .secured tor the apertures `gas chamber and behind the 1. In a burner the combination of a mixen at one end, a'gas chamber sages, an,atomizer having its `discharge mouth in front of said gas chamber but behind the open end of said mixin chamber, means for regulating the low o? gas `from said gas chamber, and means for-regulatin the flow vof atomized fuel from'the mouth of said atomizer. f v 2. In a burner, the combination of a tubular mixing chamber open at the dischar e end, a gas chamber at the rearfend of sald mixing chamber, said mixing chamber having apertures distributedroverf-its surface and leading from the as chamber into` the mixing chamber andI irected obliquely inward and forward toward the of said mixing chamber, an atomizer having its discharge mouth located in frontv of the discharge' opening of said mixing chamber, -means for controllably supplying gasto sald as chamber and means for controllably supp ying an' to said mixing chamber behind said gas chamber.

In witness whereof, I havelhereunto subdischarge end i scribed my name in the presence .of two witi nesses.

` ELMER n. BiLLoW,

Witnesses: .p

CLAYTON 0. BILLOW, J. HENRY ll/Ininaaa 

